Simply shop online in Nintendo eShop[nintendo.com] or on Nintendo.com[nintendo.com] from 12:00 am ET on December 6, 2017 to 11:59 pm ET on December 19, 2017, choose to pay with PayPal at checkout and your offer will be automatically applied to your purchase.
Add the offer to your PayPal account
Shop by 12/19/17 in Nintendo eShop or at Nintendo.com
Pay w/ PayPal (your discount will automtailly applied
Savings will be reflected on your PayPal email receipt and PayPal account transaction details.